The fencing is a sport which is emphasis the excellent skill and the gentlemen's manner. This exercise focus on spearing the competitors during the fencing competition. The long impale, the main attacking step, combines with the excellent hand skill through the whole fencing competition. The purpose of this study focus on: 1. The difference of the long impale between the senior athletes and the general athletes. 2. The difference in the reaction time and the action time of the fencing. 3. The relationship between the action of the long impale and the horizontal kick back force from the legs. 4. After the long impale, the relationship in the force kicking back at the horizontal and vertical direction of the fencing. The study methods is using the sound and light reflector, impact test machine, and power test machine as the study tools. The study group are the preparation fencing team for the Asia Olympia in 1998 and the fencing team from the China Ocean College (and there are total 16 male athletes). The study result will provide the support during the training period. After discussion and analysis of the study result, the conclusion would be shown as following: 1.There are evident difference in action time, total time, and the average speed between the senior athletes and general athletes. The rest of the measurement such as the simple reflex time, reflex time and the attacking distance did not show any difference. 2.The long impale reflex time and the action time of the fencing represent the positive connection. 3.The period of the long impale and the kick back force of the leg are under the negative connection of the fencing. 4.The horizontal force and the vertical force from the legs in the long impale action have positive connection of the fencing.